calcium diethyl difumarate, Ethyl Hydrogen FuMarate CalciuM Salt, Monoethyl FuMarate CalciuM Salt, Monoethyl FuMerate CalciuM Salt, Bis[3-(ethoxycarbonyl)acrylic acid]calcium salt, Calciumdiethyldifumarat, Monoethyl trans-2-Butenedioate CalciuM Salt, (E)-4-Ethoxy-4-oxo-2-butenoic Acid CalciuM Salt, FuMaric Acid Ethyl Ester CalciuM Salt